Dust-catcher for gas-pipes.



v T. DURNBAUGH. DUST GATGHER FOR GAS PIPES. V'ARPLIOATION I'ILE'D JAN. 7, 1910.

IVITNESSES: I

vwmi

' Patented Mar. 21, 1911.

TRUMAN DURNBAUGH, OF WAIBASH, INDIANA.

lbrfltwhom it may concern:

{Bait known that I, TRUMAN DURNBAUGH, a citizen of the United States, residing at Wabash, in the county of Wabash and State 51 i Indiana, haveinvented certain new and usefullmprovement's' in Dust-Catchers for 'Gas Pipes; and I.do declare the following to be a full,."clear, and. exact description of theinvention, reference being had tothe accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to devices for trapping-and holding sedimentary or other matter that may be present. in pipes through c which fluid or liquid may be conducted, the invention having reference more particularly to a device for catching and retaining rust, scale or dust in gas-pipes. v

The object of the invention is to provide a neatappearing and cheaply constructed trap or-du'st catcher of the above-mentioned character that will be efiective in preventing dust or similar Lmatter, especially in gas-pipes, from entering connecting valves or feed Y tubes or burnersof lamps connected with the pipes; a further object being. to provide an improved dust catcher by the use of which trouble'and expense, resulting from the dust or rust 'falling from the-walls cf the pipes into the valves, may be avoided in an economical manner and which permits ready removal-of the dust that; may accumulate,

and thereby eliminates expenses-for repairs '35., for disconnecting thepipes to clear them.

With:thegabove mentioned and other objectsin-view, the invention consistsin an im proved gravity trap comprising aseparati'ng box having a reservoir andflp'rovided with a 40 deflector for deflecting the dust or other foreign matter into the reservoir, and'providedalso with a barrier to'arrest particles of the matter that may bedrawn' by the flowing'gas partially into its channels, the gas channel in the separating box being circuitous. v The invention consists further in the parts and combinationsand arrangements of parts as hereinafter particularly described and 5 then defined in the appendedclaims.

Referring-to the drawings Figure 1 is an elevation ofthe improved dust catcher in connection with a drop pipe and the dual gas lamp, the latter being indicated by 'broken-lines as illustrative of one of the'applications of the invention for practicalpur Specification of Letters Patent.

erabl v consisting of two nus'r-carcnnn ron GASPIPES.

Patented Mar. 21, 1911.

Application filed January 7, 1910. Serial no. 536,937.

poses; Fig. 2, a vertical section of the dust catcher on the line A A in Fig. 1; Fig. 3, a horizontal section approximately on the line BB in Fig. 2; Fig. 4, a' fragmentary vertical sectionon theplane of the line C C in Fig. :2; and Fig. 5, a side elevation of the improved dust catcher.

Similar reference characters in the several figures of the drawings indicate like parts or features of construction herein referred to.

The improved dust catcher is illustrated and usually used in'connection with substantially vertical pipes, but it is-apparen't. that it may be used in other than verticalposition, and it comprises a se arating box prefat vertical sides a and a and curved ends I; and c, theiend b i being substantially straight vertically. =and the end 0 mainly straight vertically and having a curved upper portion 0. extendingiover toward the end (I, so as to form a top for the box from which a flange extends upward and joins the end 6 to constitute a neckjcl suitably adapted to be connected to a pi e 6 through which gas may be conducted into the upper portion of the separating box.

The separating box has a bottom part 1 at the middle portion of the lower ends of the sides (tor a and a nipple g extending downward from the bottom, being formed partially thereon-and partially as an extension of the end 6 to provide an outlet for the gas from the separating box, the nipple being adaptedto have a valvebody h suitably con' nectedthereto as by means of a pipecou-I pling 2', it being desirable to arrange the valve .for controlling the flow ofthe gas near to the separating box, thevalve-body it havin a rotary valve plug j therein pro vided with an. operating handle-bar. k to which operatingchains Z and Z are connected as is customary,'the plug having a passageway m thereinthrough which the gas may flow, a pipe at being .connectedto the valve-body h to receive and conduct thegas.

The pipe a may be apart of a gas lamp and have horizontal feed-pipes o and 0' connected thereto that have upright branches 1) and g respectively on which are mounted lamp urners g and g, respectively.

The upper portion of the separating box is provided with a deflector 1* that extends from the end 6 along the inner sideof the sides a and at below the neck I) and toward the end a, the deflector having an inclined upper side r that slopes downward toward I the end 0 so that gas entering the neck must pass over away from the end 12 toward the vend 0 and may then return under the de- 'fle'ctor to the end 6 in its outward flow, and

so that dust falling from the pipe 6 or carried therefrom by the flowing gas will be defi'ected over toward the end 0 and fallby the force of gravity toward the bottom of the separatingibox. A barrier .9 extends upward from the ottom f valong the inner sides of the sides a and a toward; the deflector r a suitable distance and has a sloping or inelinedup'per side If adapted toguide dust or other foreign matter that may fall thereon over toward the end c,'the upper end of, the

' barrier having a relatively thln li a thereon] that is adapted to prevent the lig ter weight, dust or finer particles that may fall on the' i upperportion of the inclined side t from belng drawn over the top of the barrier with the flowing gas, the face of the lip that is presented toward the end c-being nearly: vertical, so that the dust can not be drawn upward against it and over the top of the lip -with the usual rate of flow of the gas, but must gravitate down .to the sloping side iton WhlCh it must slide or roll into a tubular reservoir '0 that isiconnected to the separab "ing'box and extends downward beyond the bottom thereof, the reservoir being connect-J .to the bottom and partially to p'artiall end 0, t e'lower end ofthe reservoir having external screw-threads e thereon .whereby a capw having internal screw-threads 'w is connected detachably to the body of the j reservoir, the cap having a slot as therein adapted toreceivea screw driver whereby to loosen the cap if required. As will be seen by "reference to Fig. ,2 the deflector 1" ex- 40 tends from the end 6 toward the'end 0 considerably beyond the lip u of the barrier and a clear passage is provlded fromthe end of the deflector down into the'reservoir.

In practical use when the dust catcher is arranged. uprightly as shown, the gas or otherfluid or liq'uid'will flow from the pipe I e as indicated by the lighter appearing arrows toward the end 0 and around under the deflector and over 'the lip of the barrier toward the end I; and out through the nipple g without carryingforeign matter that might lodge in the valve or lamp burners or passa es, the heavier matter such as dust or i the li e being deflected by the inclined side 9', of the deflector from which it must fall by gravity into the reservoir 6,. the barrier arresting any of the lighter particles that may be carried over slightly toward the end I; and defiectingthem into the reservoir from which accumulations may readily be removed after having removed thecap w, the course of the dust or the like being indicated by the heavier appearing arrows. It will be seen that 1n some cases the dust se a'ratorf may be arranged with its end 0 un ermost either horizontally or slightly inclined, so

that sedimentary matter may fflowby gravity into the reservolr, the invention being useful in separating foreign matter from' liquid as ells-strea gaseous fluid.

Having thus described the invention, what 'is claimed as new;

' 1. In a'dust-catcher, the combination'ofa separating-box comprising two sides andtwo relatively narrowfends and also a bottom and atop forming a chamber, there being an inlet 1n the top and an outlet in the :bottom, a reservoir comprising a tube connected with and extendin beyond said bottom and a closure screwe to the end of the tube, a deflector in the separating-box opposite the inlet, and a barrier onsaid'bottoln in a plane between said outlet and said tube and extending toward said deflector, said barrier being inclined on oneside from the topof said tube upward, the opposite side of said barrier being in alinement; with the near'er'side of said outlet.

2. In a dust-catcher, the combination of a separating-box comprisin two sides and two relatlvely narrow en s and also a bottom and a to being an inlet 1n the top and'anoutlet in the bottom, a reservoir consisting v of a'inbe screwed intosaid bottom and acap screwed forming a chamber, there 7 onto the endof-the tube, a deflectorin the in presence of two witnesses.

, TRUMAN 'DURNBAUGH.

V Vitnesses:

MER E DURNBAUGH, WILLIAM C. KIRKWOOD.

In testimony whereof, I atfix my signature 

